Optimal Stent Duration After Ureteroscopy

Running, not enrolling · Not applicable

Conditions studied: Ureteral Stent

In brief

The purpose of this study is to determine how soon ureteral stents can be safely removed following surgery.

Key facts

Study ID

NCT06045962

Run by

Mayo Clinic

People needed

172

Starts

2023-11-01

Expected to finish

2026-09-01

Last updated by the study team

2026-04-21

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Participants undergoing unilateral stone treatment. Patients may have stones present bilaterally, but must only be having unilateral intervention.
• The ureteroscopy must be uncomplicated
• Patients undergoing semi-rigid ureteroscopy only, flexible ureteroscopy only, or a combination

You may not qualify if…

• Pregnancy
• A stent or nephrostomy tube placed prior to surgery
• Complex ureteroscopy - ureteral injury, ureteral perforation, ureteral stricture, impacted stone
• Infection or struvite stones
• Recurrent Urinary Tract Infection (UTI): 2 culture proven UTI in 6 months or 3 culture proven UTIs in one year
• No stone evident on ureteroscopic evaluation of ureter or kidney
• Transplant kidney
• Variant anatomy (horseshoe, pelvic kidney)

Where it is running

• Mayo Clinic Arizona — Phoenix, Arizona, United States
• University of Arizona — Tucson, Arizona, United States
• University of California San Diego — San Diego, California, United States
• Johns Hopkins University — Baltimore, Maryland, United States
• Mayo Clinic Minnesota — Rochester, Minnesota, United States
• Montefiore Medical Center — The Bronx, New York, United States
• University of North Carolina — Chapel Hill, North Carolina, United States
• Cleveland Clinic — Cleveland, Ohio, United States
• Vanderbilt University — Nashville, Tennessee, United States
• University of British Columbia — Vancouver, British Columbia, Canada
• University of Montreal — Montreal, Quebec, Canada

Full record on ClinicalTrials.gov

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